No, ICON Alloys designed for a specific vehicle application will already have the correct hub bore. The tight tolerance that ICON Alloys are manufactured to will not allow for a hub ring to be fitted between the hub snout and the inner diameter of the wheel bore. Applications where the hub bore is not optimized for a specific vehicle and allow room for a hub ring, still do not require hub rings because of the 'lug centric' design of the wheels. But, they can be used if desired. For more information contact ICON tech support at (951) 689-ICON.